Identifying Original Porsche Wheels and their part numbers for a 993

Seems like the question as to who supplied a wheel is a common discussion among Porsche owners on social media and warrants an answer below:

Outside of certain wheels supplied by the Racing Department or some Special Wishes Department wheels, all stock wheels have a part number and the Porsche triangle-"P" casting symbol somewhere on the wheel. Sometimes on the back of one of the spokes and sometimes in a recess in the back of the hub. 

Standard Alloy Wheel with
gutters along the spoke edges.

Other information such as wheel size or country of manufacturing origin may be present too. If you are wondering if your wheels are the hollow, friction welded spoke variety one can look up the part number, and as an additional feature, the backs of the spokes on hollow spoke 993 wheels are smooth with no gutters in the casting along the sides of each spoke.

Lightweight Turbo Wheel, friction welded hollow spoke.
Available in Turbo/C4 and Carrera offsets.

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Wheel & Tire Information. Here are some Porsche documents that are useful in researching styles and fitment of wheels for a 993 and other Porsche vehicles as well as tire size fitment. All very useful when trying to determine if a certain OE or aftermarket wheel or tire size will fit your car.

Some wheels have two part numbers cast into a spoke on the back of the wheel. This is the case when one set of spokes is fitted to two sizes of wheel barrels for differing fitment. This can be the case for hollow spoke wheels where the spokes are welded to more than one barrel section to make a complete wheel. In this case, the part numbers are labeled "A" & "B" and near the center hub section of the wheel, there is a small checkbox stamped with an "X" next to the letter "A" or "B" denoting which part number is associated with the complete wheel assembly.

If you found this page informative return to the main page and bookmark it for future 993-related servicing, repair, and upgrading guidance & information.

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